DecimalOk, #NoWristCheck but rather a more generic #TimepieceCheck. One of several hour glasses I own.
This is a Jay Lab 60 min sand timer (hour glass) made of borosilicate glass (as typically found in lab glassware). To keep that science feel it has a beaker like shape and a simple font to show the time it is rated for (60 minutes). They also make (or made) a 30 min model and it has '30 minutes' printed on the side.
I wrote more about why I like this on my alt account:
https://velocipederider.com/@ruari/109065240233683566
Velocipede Rider (@[email protected])
Attached: 1 image Tip: Hour glasses are great if you have small kids. When my own kids where younger I would flip one exactly one hour before their bed time, and then explain that when it finished it would be time to go to sleep. This is very useful in Norway, where in the summer it stays bright for a long time. A ten minute one is also useful when preparing for how long until "we leave for X". My youngest used to talk about time in terms of how many "big hour glasses", rather than just hours. 🤪